I think a store doesn’t match what you enjoy, or hear. I think the key take away from someone who is new to audio, which includes myself. At about 6 months now. Is that you don’t have the experience to tell the difference.
Second, rather than invest in something pricey. Try an array of headphones. I’m no expert and I do not expect you take my advice. But I would try the Sennhieser 6xx from drop. And a decent headphone amp, ifi zen dac and put yourself in that 400 dollar range to try some different things. See what you like
You can go with a HiFiman Sundara if you like planar.
If you are willing to get great sound with a bit of EQ you can try the HarmonicDyne Zeus.
There’s too many variables to headphones and if you’re not dishing out cash you probably aren’t going to receive multiple check marks on that list of variables. So first figure what it is you like and narrow in on a pair if headphones that posses a variation of those variables in a single headphone at a decent price.
Just some decent entry level headphones that you are probably sure to enjoy. I’m certain someone here will give you some more or already have mentioned great entry pairs of headphones.
Any headphones I get now I love because from the trash I used to use, to not knowing what is the ultimate best sound makes each experience grand.
But when you don’t have anything local than what can you do, and this pandemic is a nightmare. So even more reason to take some advice from people with experience and try your luck without breaking the bank.
Also, try open box headphones. Not for price, rather it was a demo unit or someone may have returned it. You try it, you don’t like it send it back guilt free. But don’t buy something new, open and return it just cause you don’t like it that’s the type of thing that harms brick and mortar. So something else to help maybe help you find what you are seeking
Edit: To answer your question after my gibba-gabba, online is killing a lot of stores and monopolizing the audio industry. Second, not 100% sure if this is true with headphones. But with Sound United[denon & Marantz, etc] they expect you to purchase a certain amount of units to be an authorized dealer. They on the other hand provide demo units as part of the group effort. I purchased my Marantz at an astounding deal. It was 500 dollars cheaper than the BF/cyber Monday deals I saw and a 1100 off msrp. The gentleman who owns the audio store was telling me this info because the unit I bought was a demo sent by the company and had full warranty.
As @rrwwss52 mentioned be sure to check your return policies. I’ve never tried with wired headphones but when I was in the process of getting a decent pair of wireless headphones this came in very handy and on a good note saved me a ton of money cause what people suggested I did not like.